SUN HYDRAULICS
PRHRLSV

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics PRHRLSV (PRHRLSV) is a direct-acting pressure reducing valve designed to manage high primary pressure at inlet port 2 and maintain a consistent reduced pressure at port 1. This model features a damped construction for stable operation, making it ideal for applications requiring high reduced pressure. Notably, this valve lacks relieving capability and is unsuitable for deadheaded applications, as low leakage on the reduced pressure side can result in significant pressure increases. The PRHRLSV serves as an effective replacement for LPC valves when a normally open, restrictive compensating element with higher pressure drop across an orifice is required. Full reverse flow from port 1 to port 2 may cause the main spool to close; therefore, incorporating a separate check valve is advisable if reverse free flow is necessary. The valve excels in accumulator circuits due to its design that minimizes secondary circuit leakage by eliminating pilot control flow. It offers superior dynamic response compared to equivalent pilot-operated models and maintains effectiveness under maximum operating pressures of up to 5000 psi (350 bar). Adjustments are facilitated by a screw with an internal hex size of 5/32 inches and locknut torque specifications of 80-90 lbf in (9-10 Nm). The valve's floating style construction reduces risks of internal part binding from excessive installation torque or machining variations. With a capacity of 40 gpm (160 L/min), the PRHRLSV ensures efficient performance while maintaining minimal leakage rates under specified conditions. It incorporates robust materials and construction techniques suitable for demanding hydraulic systems, ensuring reliable performance across various applications where precise pressure control is critical.